Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
200026goodexcellent41excellent
190021goodexcellent41excellent
180020goodexcellent31excellent
170013goodexcellent21excellent
16008excellentexcellent11excellent
15003excellentexcellent11excellent
14005excellentexcellent21excellent
13008excellentexcellent21excellent
120016goodexcellent31excellent
110027goodexcellent41excellent
100030goodexcellent41excellent
090031goodexcellent51excellent
080048lightly pollutedexcellent61excellent
070049lightly pollutedexcellent71excellent
060050lightly pollutedexcellent71excellent
050047lightly pollutedexcellent71excellent
040051lightly pollutedexcellent71excellent
030051lightly pollutedexcellent71excellent
020050lightly pollutedexcellent81excellent
010055lightly pollutedexcellent71excellent
000052lightly pollutedexcellent91excellent
230054lightly pollutedexcellent101excellent
220050lightly pollutedexcellent81excellent
210041lightly pollutedexcellent61excellent